PRECISE WELDS: This pulse TIG welding machine effortlessly produces beautiful and durable welds! With optimal heat input and weld penetration determined through extensive testing, it achieves zero porosity, zero slag inclusions, and single-side welding with double-side formation. The welds are fine and almost invisible, seamlessly integrating with the workpiece, delivering a strong, crack-resistant, and high-quality welding result USER-FRIENDLY: With five settings tailored for welding different metals and scenarios, this machine combines adjustable power and welding time with an automatic retract feature. Just hold the workpiece steady, and the welding gun will automatically perform precise spot welds, preventing the welding tip from sticking. Even if you re a novice, you ll quickly get the hang of it and easily achieve high-quality welds HIGH-PRECISION WELDING: Equipped with a welding needle grinder, this machine sharpens the welding tip to a fine point, significantly enhancing welding precision and minimizing the weld area. Coupled with automatic spot welding technology, it delivers welding results comparable to those of a laser welder. At a lower cost, you achieve smooth, uniform welds that meet higher welding standards GAS PROTECTION: Supports argon gas input, delivering protective gas directly to the welding gun via a hose to create an effective shield around the welding area.